Twilio
Communications API platform with AI Assistants and voice AI for developers.
About
Twilio is the cloud communications platform whose APIs for voice, SMS, messaging, and video underpin countless developer-built customer experiences. For AI workloads, Twilio AI Assistants let developers build conversational assistants that work across voice, SMS, RCS, WhatsApp, and chat, with Conversation Memory for customer profiles and semantic recall.
On voice, ConversationRelay is the managed real-time layer: Twilio handles speech-to-text and text-to-speech over a persistent WebSocket while the developer's app supplies the LLM logic, with provider choice across Deepgram, Google, Amazon Polly, and ElevenLabs. The twilio-agent-connect SDKs add multi-channel support with OpenAI adapters and connectors for Microsoft Agent Framework and AWS Bedrock agents.
What it can do
- AI Assistants across voice, SMS, RCS, WhatsApp, and chat
- ConversationRelay: managed real-time STT/TTS for voice AI agents
- Conversation Memory for customer profiles and semantic recall
- SDKs and connectors for OpenAI, Microsoft Agent Framework, and Bedrock
Setup
Create a Twilio account (trial credit included), buy a voice-capable phone number, and configure AI Assistants or ConversationRelay in the console.
Prerequisites
A Twilio account with API credentials; a WebSocket server for custom voice AI integrations.
Use cases
Works with
Trust score — 9/10
Scored 9/10 (verified tier, metrics-v1). Evidence: Verified via vendor site/docs/GitHub and reputable coverage, wave 133; Trending score 90/100 from researcher assessment.
Sources
Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.